Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-29T15:28:46.650Z Has data issue: false hasContentIssue false
  • English
  • Français

On the Postoutburst Far Ultraviolet Declines of WZ Sagittae and V1500 Cygni

Published online by Cambridge University Press:  12 April 2016

Edward M. Sion  and
Paula Szkody
Edward M. Sion
Affiliation:
Department of Astronomy and Astrophysics, Villanova University, Villanova, PA 19085, U.S.A.
Paula Szkody
Affiliation:
Department of Astronomy, University of Washington, Seattle, WA 98195, U.S.A.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In an earlier paper [1], we demonstrated that the declining ultraviolet flux, observed long after optical quiescence was reached in three dwarf novae, most likely represents the cooling of a white dwarf whose outer layers have been heated by the accretion event. If the observed change in temperature is due to the cooling of the white dwarf surface layers following the intense heating produced in the outburst, then a thermal timescale of the heated portion of the white dwarf is implied, which could yield a rough estimate of the depth of heating into the white dwarf envelope. The thermal timescale is essentially given by the ratio of the internal energy in the affected layers to their luminosity, L.

Type
1a. Basic Properties of Novae
Information
International Astronomical Union Colloquium , Volume 122: Physics of Classical Novae , 1990 , pp. 59 - 60
Copyright
Copyright © Springer-Verlag 1990

References

[1] Szkody, P. and Sion, E 1989, IAU Coll. 114 p. 92.Google Scholar
[2] Sion, E.M., Acierno, M.J., and Tomcyzk, S. 1979, Ap. J., 230, 832CrossRefGoogle Scholar
[3] Sion, E.M. and Starrfield, S. 1986, Ap. J., 330, 157.Google Scholar
[4] Kaluzny, J. and Chlebowski, T. 1989, Ap. J., 332, 227.Google Scholar
[5] Cohen, J. 1985, Ap. J., 292, 90.CrossRefGoogle Scholar
[6] Prialnik, D. 1986, Ap. J., 310, 222.CrossRefGoogle Scholar